Chain and chain-guide for sheet-delivery apparatus for printing-presses



(No Model) 0. B. OOTTRELL'. CHAIN AND CHAIN GUIDE FOR SHEET DELIVERY APPARATUS FOR PRINTING PRESSES.

Patented'June 9 WAN-N Amiga 5%.

N. PETERS. Pholmllihagnpher, Wuhlngton, u z;

llnrrn Sraes air CALVERT B. COTTRELL, OF STONINGTON, CONNECTICUT.

CHAIN AND CHAIN-GUIDE FOR SHEET-DELIVERY APPARATUS FOR PRlNTlNG-PRESSES.

SPECIFICATION forming part of Letters Patent No. 319,459, dated June 9, 1885.

Application filed. Ju y 31, 1884.

To all whom it may concern:

Be it known that I, CALVERT B. OO'ITRELL, of Stonington, in the county of New London and State of Connecticut, have invented a new and useful Improvement in Chains and Chain-Guides for the Sheet-Delivery Apparatus of Printing-Presses and other Machinery, of which the following is a specification.

My invention relates more particularly to endless chains used in sheet-delivery apparatus for printing-presses, but may be embodied in other machinery.

In sheet-delivery apparatus for printing presses, such as is shown in my two applicacations for Letters Patent, Serial No. 112,916, filed November 26, 1883,and Serial No. 118,908, filed January 28, 1884, two endless chains are arranged at the front of the impression-cylinder, and between these endless chains extend the gripper-bar and gripper-rod, which carry the delivery-grippers. These endless chains are supported and driven by chain-wheels arranged at the front of and adjacent to the cylinder and other chain-wheels arranged at the further end of the press and adjacent to the receiving-table, and between the chain-wheels the chains are supported by guides, tracks, or ways, which keep the chains from sagging.

My invention consists in the combination, with a chain, of a track, way, or guide on which the chain is supported and by which it is guided in its movement, and which is gut tered or channeled for conducting along it any oil which may drop from the chain.

The invention also consists in the combination, with a chain and a track or guide on which the chain is supported and by which it is guided in its movement, of a guard or shield secured to the track or guide and inclosing the chain. When a chain and track or guide are used in the sheet-delivery apparatus of a printing-press or other machine where they occupy an elevated position, the attendant is liable to grasp the track or guide, and the use of the guard or shield precludes the possibility of accidentally grasping the moving chain.

The invention also consists in a novel com bination, with a track or way, of a chain of a (No model.)

a side View ofa portion of a chain, a track or guide, and a shield or guard embodying my invention; Fig. 2 is a plan on a larger scale of a portion of chain and its track or guide, also illustrating a part of a gripper apparatus which may be employed with the chain in a printing-press; and Fig. 3 is a transverse section of the chain and track or guide, also illustrating a part of the gripper apparatus.

Similar letters of reference designate corresponding parts in the several figures.

D designates a portion of chain, the construction of which I will first describe. Alternate links ofthe chain are composed of side pieces, f, arranged in pairs and formed with inwardly-projecting hubs f the several side pieces, with their hubs, being duplicates of each other. hen a pair of links, f, are arranged as shown in the drawings, their hubs f are in line and receive through them the pintles or.

chain-pins f Intermediate links are composed of pairs of side plates, f, which are con nected by the pins f with the links f, and thereby connect said links f together and complete the chain. The pins f are preferably fitted to turn in the hubs f, and are riveted fast in the side plates, f.

A chain of the above description is very strong and durable, and capable of being accurately made at a comparatively small cost.

The chainis supported and guided by means of atrack, way, or guide, d, the upper or chainsupporting portion, (1, of which is about equal inwidth to the width of the links composed of the side pieces, f, and to the width of the space between the two side plates, f of alink.

The depth of the pieces fis only about equal to the diameter of thehubs f, and said pieces, with their hubs, bear and are supported on the top of theportion d of the track, way, or guide. The side plates, f, are of greater depth, and embrace between them the portion d of the track, way, or guide extending down on opposite sides thereof, as shown in Fig. 3. The chain is, therefore, not only supported, but is guided laterally by the track or way.

In order that the chain may work smoothly, especially when chainwheels are used, oil may be applied to the working parts, and in order to prevent the oil from dripping I pro vide the track or way with gutters f on or in elevated position in any machine, the attendant is liable to grasp the track or way, and to obviate anyliability of the attendant so grasping a moving chain I secure to the track or way a guard or shield, f which covers and almost incloses the chain, as shown particularly in Fig. 3. When the chain is used in a sheet-delivery apparatus, it has delivery-grippers connected with it. The grippers here in part shown are similar to those shown in my aforesaid application for a patent numbered 118,908, and are not herein claimed.

At the desired point in the chain a solid link, f*, is employed in place of two side plates f and in this solid link is secured the end of a gripper-bar, provided near opposite ends with arms 9. In the arms 9 is journaled a gripper-shaft, carrying gripper-fingers g", and by means of a gripper-closing spring, 9, the gripper-shaft g is turned to close the fingers upon gripper-rests g on the gripper-bar 9.

On the end of the gripper-shaft g is an arm,

9 carrying a roller or bowl, and when by the movement of the chain the roller is brought against a suitable cam the shaft g will be turned to open the fingers 9 What I claim as my invention, and desire to secure by Letters Patent, is

1. The combinatiomwith a chain, of a track,

way, or guide on which the chain is supported and guided in its movement, and which is gutteredor channeled for conducting along it any oil which may drip from the chain, substantially as herein described.

2. The combination, with a chain and a track, way,or guide on which the chain is supported and guided in its movement, of a guard or shield secured to the track or way and inclosing the chain, substantially as and for the purpose herein described.

3. The combination, with a track or way, of the chain herein described having alternate links consisting of side pieces, f, provided with inwardly-projecting hubs f, bearing on the upper surface of the track or way, and having intermediate links consisting of plates f receiving the track or way between them,

substantially as set forth.

0. B. OOTTRELL.

Witnesses:

FREDK. HAYNES, EMIL ScHWAR'rz. 

